{"id":"CVE-2024-56156","aliases":["EUVD-2024-54441","GHSA-99mc-ch53-pqh9"],"status":"published","title":"Halo Vulnerable to Stored XSS and RCE via File Upload Bypass","description":"Halo is an open source website building tool. Prior to version 2.20.13, a vulnerability in Halo allows attackers to bypass file type validation controls. This bypass enables the upload of malicious files including executables and HTML files, which can lead to stored cross-site scripting attacks and potential remote code execution under certain circumstances. This issue has been patched in version 2.20.13.","severity":{"version":"4.0","score":5.5,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:L/E:P","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00827,"percentile":0.57901,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-79"],"published":"2025-04-25T15:08:00Z","modified":"2026-10-28T10:54:49Z","products":[{"vendor":"halo","product":"halo"},{"vendor":"halo-dev","product":"halo"}],"references":[{"url":"https://github.com/halo-dev/halo/security/advisories/GHSA-99mc-ch53-pqh9","tags":["x_refsource_CONFIRM","Exploit","Mitigation","Vendor Advisory","advisory"]},{"url":"https://github.com/halo-dev/halo/pull/7149","tags":["x_refsource_MISC","Issue Tracking","fix"]},{"url":"https://github.com/halo-dev/halo/commit/24f8d7b57127e2607ec05adb7c912b3decddeb99","tags":["x_refsource_MISC","fix"]},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/56xxx/CVE-2024-56156.json","tags":["advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-56156","tags":["advisory"]}],"sources":{"cve":[{"id":"CVE-2024-56156","title":"Halo Vulnerable to Stored XSS and RCE via File Upload Bypass","description":"Halo is an open source website building tool. Prior to version 2.20.13, a vulnerability in Halo allows attackers to bypass file type validation controls. This bypass enables the upload of malicious files including executables and HTML files, which can lead to stored cross-site scripting attacks and potential remote code execution under certain circumstances. This issue has been patched in version 2.20.13.","status":"published","published":"2025-04-25T15:08:00.942Z","modified":"2026-02-03T18:07:18.738Z","cvss":[{"version":"4.0","score":5.5,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:L/E:P","level":"medium","assessor":"cna"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:33:57.983942Z"}],"euvd":[{"id":"EUVD-2024-54441","description":"Halo is an open source website building tool. Prior to version 2.20.13, a vulnerability in Halo allows attackers to bypass file type validation controls. This bypass enables the upload of malicious files including executables and HTML files, which can lead to stored cross-site scripting attacks and potential remote code execution under certain circumstances. This issue has been patched in version 2.20.13.","status":"published","published":"2025-04-25T15:08:00Z","modified":"2026-02-03T18:07:18Z","cvss":[{"version":"4.0","score":5.5,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:L/E:P","level":"medium"}],"updated_at":"2026-11-02T19:48:44.612436Z"}],"nvd":[{"id":"CVE-2024-56156","description":"Halo is an open source website building tool. Prior to version 2.20.13, a vulnerability in Halo allows attackers to bypass file type validation controls. This bypass enables the upload of malicious files including executables and HTML files, which can lead to stored cross-site scripting attacks and potential remote code execution under certain circumstances. This issue has been patched in version 2.20.13.","status":"published","published":"2025-04-25T16:15:25.597Z","modified":"2026-06-17T08:11:45.843Z","cvss":[{"version":"4.0","score":5.5,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:L/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"medium","assessor":"secondary"},{"version":"3.1","score":9,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H","level":"critical","assessor":"primary"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T14:10:46.40251Z"}],"osv":[{"id":"CVE-2024-56156","title":"Halo Vulnerable to Stored XSS and RCE via File Upload Bypass","description":"Halo is an open source website building tool. Prior to version 2.20.13, a vulnerability in Halo allows attackers to bypass file type validation controls. This bypass enables the upload of malicious files including executables and HTML files, which can lead to stored cross-site scripting attacks and potential remote code execution under certain circumstances. This issue has been patched in version 2.20.13.","status":"published","published":"2025-04-25T15:08:00.942Z","modified":"2026-10-28T10:54:49.48436353Z","cvss":[{"version":"4.0","score":5.5,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:L/SI:L/SA:L/E:P","level":"medium"}],"cwes":["CWE-79"],"updated_at":"2026-11-02T15:44:44.777182Z"}]}}